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    Duet 2 Ethernet and SBC

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    Beta Firmware
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    • wilrikerundefined
      wilriker @deadwood83
      last edited by wilriker

      @deadwood83 said in Duet 2 Ethernet and SBC:

      RE: Firmware fix; from the RF3.2 excel spreadsheet -
      Duet+SBC support
      Duet 2 SBC support Done

      Unfortunately this support is currently limited to Duet 2 only, i.e. no DueX2/DueX5 connected.

      EDIT: the above is still considered a preliminary limitation and it is being worked on to get this resolved.

      Explicitly pulling the ESP_Enable line down (for a still present Wifi module) should be added to firmware soon.

      Manuel
      Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
      with probably always latest firmware/DWC (incl. betas or self-compiled)
      My Tool Collection

      1 Reply Last reply Reply Quote 0
      • arhiundefined
        arhi @deadwood83
        last edited by

        @deadwood83 seen that but I want to make it different (a pcb that will plug directly into rpi + duet), but looks like easier to measure distance of the hole from the header than reworking the easyeda project ... I'll share the project when I make it

        A Former User? 1 Reply Last reply Reply Quote 0
        • A Former User?
          A Former User @arhi
          last edited by

          @arhi said in Duet 2 Ethernet and SBC:

          but looks like easier to measure distance of the hole from the header than reworking the easyeda project .

          the kicad sources for the duet gives you all the measurements, with the measurement tool in kicad? I used that to print a piece to glue some dupont headers to and keep the holes for the stand-offs.

          arhiundefined 1 Reply Last reply Reply Quote 1
          • arhiundefined
            arhi @A Former User
            last edited by

            @bearer said in Duet 2 Ethernet and SBC:

            the kicad sources for the duet

            HAAHA I did not see the tree from the forest ... thanks, I was trying to move the tiny board to kicad, danced with calipers... loading kicad source of the duet2eth board did not at any point come to mind 😄 😄 😄 thanks, that solves my problem 100%

            1 Reply Last reply Reply Quote 0
            • arhiundefined
              arhi
              last edited by arhi

              I went with a WAAAAAY bigger board to avoid using any cables. Something like this .. I kept all 3 mount holes for the wifi board, expanded the board outside of the duet pcb so that this board can plug directly, in the same time, into duet and into rpi so no cables .. I also added a header for RX/TX for uart1 on the duet since it's not used any more might be useful for cnc pendant or second screen or ..

              b92a983e-8ddb-41f1-a787-13de71aa781f-image.png

              8c22c68b-1c76-42f5-b8ff-fd56d3784aac-image.png

              815cba65-b9c1-4c5a-afc4-9b992c68679e-image.png

              I still suck at kicad big time but this should work .. kicad files who wanna play, maybe make better

              A Former User? JoergS5undefined 2 Replies Last reply Reply Quote 1
              • A Former User?
                A Former User @arhi
                last edited by

                @arhi said in Duet 2 Ethernet and SBC:

                into duet and into rpi so no cables

                interesting!

                arhiundefined 1 Reply Last reply Reply Quote 0
                • arhiundefined
                  arhi @A Former User
                  last edited by arhi

                  @bearer said in Duet 2 Ethernet and SBC:

                  @arhi said in Duet 2 Ethernet and SBC:

                  into duet and into rpi so no cables

                  interesting!

                  I just ordered assembled boards from jlpcb (trying them out for the first time, normally I was using seed, itead and dirty) should be here in 5-6 days so will say how it works (or not 😄 )

                  1 Reply Last reply Reply Quote 0
                  • JoergS5undefined
                    JoergS5 @arhi
                    last edited by

                    @arhi I agree, it is an interesting idea to design without cables.

                    arhiundefined 1 Reply Last reply Reply Quote 0
                    • arhiundefined
                      arhi @JoergS5
                      last edited by

                      @JoergS5 said in Duet 2 Ethernet and SBC:

                      @arhi I agree, it is an interesting idea to design without cables.

                      made sense to me, we'll see, fedex normally arrive inside 7 days so .. not a long time to wait and not expensive (2$ for 5 pcb's, 15$ assembly+parts, 15$ fedex) ideal board to try out the jlcpcb system

                      oliofundefined Dougal1957undefined 2 Replies Last reply Reply Quote 0
                      • deadwood83undefined
                        deadwood83
                        last edited by

                        Have you ever had a DHL driver scream at you then throw a package at your face while shouting "Social distancing?"

                        Yeah, me either. They do leave things at my door and run away though. Jumper for scale.20200925_091645.jpg

                        Look at those tiny resistors. Aren't they cute? you could accidentally desolder them with an intense gaze. I'm going to do just that to R1 and at least once to an R2.

                        1 Reply Last reply Reply Quote 0
                        • smoki3undefined
                          smoki3
                          last edited by

                          Any news about a firmware fix for SBC and Duex5?

                          wilrikerundefined 1 Reply Last reply Reply Quote 0
                          • deadwood83undefined
                            deadwood83
                            last edited by

                            Dry run looks super promising. I goofed though and realized I do not have any 24->5V USB-C power delivery units.

                            Duet2SBC_DryRUN1.JPG
                            Duet2SBC_DryRUN2.JPG
                            IMG_20200925_121720.jpg

                            Now I need to build out a male-male harness, throw this on my delta, solder a second board to the delta duet, and try a real run.

                            smoki3undefined 1 Reply Last reply Reply Quote 0
                            • smoki3undefined
                              smoki3 @deadwood83
                              last edited by

                              @deadwood83 would be cool to have an integrated 5V regulator

                              I used this one:

                              https://www.amazon.de/PEMENOL-Einstellbar-Spannungwandler-Stromversorgung-Wirkungsgrad/dp/B07DP2MDJQ/ref=mp_s_a_1_2?dchild=1&keywords=5v+buck+converter&qid=1601061499&sprefix=5v+buxk+&sr=8-2

                              They are super small. But I have to wire them with a cable directly from 24V

                              deadwood83undefined 1 Reply Last reply Reply Quote 0
                              • deadwood83undefined
                                deadwood83 @smoki3
                                last edited by

                                @smoki3 it would still require traces back to the 24v input. Also, the coils used on those (and more often the B or C-lot mp1584) are intolerant of feedback on the 12/24v line. Not to mention the RF noise it generates and the extra heat to dissipate. When the fail, they fail open. If that overwhelmed the 3.3v stepdown on the pi it would probably damage the input buffers on the PCB; so then you're either doing micro soldering or putting on a whole new daughterboard just to avoid running one tap from the PSU and a dedicated 5V for the pi.. in addition to having to buy a new pi.

                                Add that to quadrupling the PCB cost due to needing to stretch all the way back to the inputs and suddenly that mod costs Pi+PCB+Time+Risk to damaging mainboard. Add a voltage regulator after the input and the PCB SMT cost skyrockets due to small quantity. It's just not worth it and defeats the tiny form factor. One of my goals was to give people an option to add SBC support without having to redesign mainboard housings.

                                In comparison, a 50W Meanwell 5V supply is ~USD $13 and includes a meshed RF-blocking shell (for the high frequencies that could interfere with comms); voltage regulation; transient handling; and is not exposed to feedback spikes from, say, a ceramic-potted heater cartridge.

                                The design is fully open source. I won't ever put a cheap digital buck, but nothing stopping you from dipping a toe into PCB creation and doing it yourself. That's how I got started, and I highly recommend it. It's pretty fun!

                                My 5v PSU and USB-C hookup should be here Wednesday. Kudos to the firmware team for the excellent work on the Duet2 SBC support. I have not been able to derive a synthetic test which causes it to fail where standalone does not. I still have 4 PCBs I am willing to send at the cost of postage to homes in the continental USA.

                                1 Reply Last reply Reply Quote 2
                                • taconiteundefined
                                  taconite
                                  last edited by

                                  Wow awesome what you guys put together here!!
                                  Have some of you thought about a "official" step-by-step guide for duet 2 ethernet and wifi?

                                  Custom ANET A8
                                  Custom Delta: D-PATCH (Delta Printer with Automatic Tool CHanging) https://forum.duet3d.com/topic/16082/d-patch?_=1596131234754

                                  All I do here is under this license: CC BY-NC-SA

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                                  • oliofundefined
                                    oliof @arhi
                                    last edited by

                                    @arhi I'd be interested in getting a board or two if you have spares (-;

                                    <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

                                    arhiundefined 1 Reply Last reply Reply Quote 0
                                    • arhiundefined
                                      arhi @oliof
                                      last edited by

                                      @oliof said in Duet 2 Ethernet and SBC:

                                      @arhi I'd be interested in getting a board or two if you have spares (-;

                                      they sent me email few hours ago that they sent the package today, bit slower than I anticipated but still ok. Let's see how much time it takes for fedex to bring it here.

                                      I ordered 5 boards, I need 3 and one will go to omni so I will have one spare, shoot me your address via pm... anyhow I need to test them first and that might take bit longer (as I'm one handed attm so everything is very slow till my right hand is back to "working and not hurting like a #$%^@$^%$" state)

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                                      • Dougal1957undefined
                                        Dougal1957 @arhi
                                        last edited by

                                        @arhi said in Duet 2 Ethernet and SBC:

                                        made sense to me, we'll see, fedex normally arrive inside 7 days so .. not a long time to wait and not expensive (2$ for 5 pcb's, 15$ assembly+parts, 15$ fedex) ideal board to try out the jlcpcb system.

                                        Arhi

                                        It may be worth while for one of us in EU to order a batch from JLB ourselves can you post the full file set you sent to them for quoting and I can look into it.

                                        @oliof how does this sound to you?

                                        Doug

                                        A Former User? arhiundefined 3 Replies Last reply Reply Quote 1
                                        • A Former User?
                                          A Former User @Dougal1957
                                          last edited by

                                          @Dougal1957 said in Duet 2 Ethernet and SBC:

                                          @arhi said in Duet 2 Ethernet and SBC:

                                          made sense to me, we'll see, fedex normally arrive inside 7 days so .. not a long time to wait and not expensive (2$ for 5 pcb's, 15$ assembly+parts, 15$ fedex) ideal board to try out the jlcpcb system.

                                          Arhi

                                          It may be worth while for one of us in EU to order a batch from JLB ourselves can you post the full file set you sent to them for quoting and I can look into it.

                                          @oliof how does this sound to you?

                                          Doug

                                          if someone is ordering a batch count me in for the cost of x3

                                          1 Reply Last reply Reply Quote 0
                                          • arhiundefined
                                            arhi @Dougal1957
                                            last edited by

                                            @Dougal1957 the whole kicad project is attached to my original message, now, that handles the gerbers, I'll check if I stored the original bom and placement files (I think I killed them after the upload but they are easily regenerated 😄 there are only 4 parts on the whole board) ... anyhow, let's see if this works before we get more orders from jlcpcb 😄 and if there maybe is some smart change that can be done too 😄 ... I was thinking maybe a footprint for the 3A DCDC board to bring 5V to SBC ... also maybe 3V3 pin on the serial header too ... and maybe some gpio from the sbc to some relay tu turn external something on/off ?! ... tbh I made this mostly to quickly test jlcpcb than I really give enough thought in the board itself 😄 .... now after I had some time to think about it I'm getting ideas 😄 😄 😄 but wanna see if this barebone thing works or not before I start adding stuff 🙂 (and seeing if the jlcpcb works for me or not as I need a rather important project to design and if this works ok I'll use jlcpcb to do it, but if not I need to look elsewhere and design house dictate what parts I'll be using so...)

                                            Dougal1957undefined 1 Reply Last reply Reply Quote 1
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